Randy Permana’s scientific contributions

Oyster mushroom is a type of mushroom that can be consumed by humans. Lots of food products are made from processed oyster mushrooms. This makes mushroom farmers intensively cultivate oyster mushrooms because they see good economic prospects. However, not all mushroom cultivation processes can be successful so it will have an impact on the yield of the oyster mushrooms. So it is necessary to classify so that it is easier for mushroom farmers to determine the amount of yield from the oyster mushroom. The classification was carried out because of the difficulty of mushroom farmers in determining the amount of harvest by looking at the width of the mushroom caps, the number of mushroom caps to the mushroom harvest time. This study proposes a data mining technique to classify oyster mushroom yields using the K-Nearest Neighbors algorithm so that it can help mushroom farmers in determining the yield of oyster mushrooms being cultivated. This study used a dataset of 42 mushrooms as training data and 1 mushroom data to determine the classification of the crops. From the results of testing on 1 mushroom with a cap width of 8 cm, the number of caps is 14 pieces and the harvest time is 49 days, the results of classification results obtained from this mushroom are Less with a Mean absolute error of 0.1419, Root mean squared error of 0.2111, Relative absolute error of 36.2177% and Root relative squared error of 48.002%. The results of this research can help mushroom farmers in classifying oyster mushroom yields.

Jamur tiram merupakan jenis jamur yang dapat dikonsumsi baik jamur segar maupun jamur yang sudah diolah menjadi berbagai makanan. Budidaya jamur tiram menjadi salah satu usaha yang dilakukan oleh para petani jamur karena proses budidaya yang mudah dilakukan, media tanam jamur tiram yang mudah didapatkan hingga pengolahan jamur tiram yang dapat dijadikan berbagai macam makanan. Salah satu kelompok budidaya jamur tiram berada di Kampung Jamur, kecamatan Pauh Kota Padang. Di Kampung Jamur, para petani jamur melakukan budidaya jamur tiram mulai membuat media tanam, menghasilkan jamur tiram segar hingga produk makanan olahan dari jamur tiram. Beberapa produk yang dihasilkan adalah jamur segar, rendang jamur, es krim jamur, agar-agar jamur dan kerupuk jamur. Pemasaran produk ini dilakukan melalui forum jual beli di media sosial, menitipkan produk di minimarket sekitar dan pembelian secara langsung ke Kampung Jamur. Permasalahan yang diperoleh adalah kecilnya area pemasaran dan sedikitnya media pemasaran yang digunakan untuk memasarkan produk tersebut. Kegiatan ini memberikan pengetahuan kepada para petani jamur untuk mengembangkan area dan media pemasaran menggunakan marketplace. Tujuan dari kegiatan ini adalah mengenalkan sebuah aplikasi untuk melakukan analisis data yang dapat digunakan untuk melakukan klasterisasi pemasaran produk olahan jamur tiram. Aplikasi yang dikenalkan adalah aplikasi Weka versi 3.8.3. Hasil dari kegiatan ini adalah tingginya keingintahuan petani jamur tentang cara pemasaran produk dengan media promosi lainnya dan adanya minat dari beberapa petani jamur untuk menggunakan aplikasi Weka 3.8.3 dalam mengelompokkan pemasaran produk olahan jamur tiram.

The city of Padang has many tourist attractions so that the city of Padang is one of the tourist destinations. Tourists who come not only from within the country but also from abroad. For that we need a technology that can promote tourist objects to visiting tourists. The technology that is currently becoming popular is augmented reality. Augmented reality can provide more innovative information so that tourists are interested in visiting the objects they are visiting. This augmented reality technology will be applied to Android-based smartphones and use 3D objects. This augmented reality application uses the point of interest method, where tourists use a smartphone camera to recognize a map image of the city of Padang and send the results of capturing these images to be processed and display visually according to predetermined points.

The need for digital technology has increased along with the development of new technological discoveries. These needs cause changes in the pattern of human life in socializing, doing activities, as well as in understanding and learning things. One technology that continues to experience development is mobile technology, where this technology is owned by the majority of the earth's population. The application of mobile technology in the learning process is one of the choices at this time, where practicality and mobile are one of the strong reasons for using this technology. In this service, Augmented Reality and Virtual Reality technology will be introduced to support the learning process. AR and VR technologies introduced include digital content that enters the realm of education, where using AR content can help accelerate and improve the student learning process.

Motorcycle sales have increased significantly, motorcycle manufacturers are competing to produce the latest models which are then sold to consumers. As a result, motorcycle dealers are overwhelmed with more and more data, not knowing what to do with it. Motorcycle dealers also have difficulty calculating the total sales of motorcycles. We try to provide solutions to deal with data overflow. We propose designing a star schema as the basis for creating a data warehouse. To create a star schema, we propose a four-step sequence in creating an effective star schema, starting from requirements analysis and reporting, understanding business processes, connecting and matching business processes with suitable entities and determining the dimensions of the business processes. We get a star schema with 1 fact table, motorcycle_sales and 11 of dimension tables, such as brand, color, customer, customer_contract, distributor, district, motorcycle, repair_workshop, sell_location, type and time. The star schema is an optimized model that provides the best performance in presenting more complex information

Augmented Reality (AR) adalah sebuah teknologi yang mampu memproyeksikan objek virtual 3D ke dalam lingkungan nyata sehingga objek 3D tersebut dapat berinteraksi secara realtime. Tujuan dari penelitian ini adalah untuk mengembangkan media baru dalam kegiatan promosi pada motor Yamaha Tjahaja Baru menggunakan teknologi Augmented Reality berbasis android. Nantinya penelitian ini akan memunculkan objek 3D dari motor pada brosur sehingga brosur menjadi lebih menarik dan mampu menampilkan visualisasi dari bentuk motor secara lebih nyata. Aplikasi ini membutuhkan marker berupa brosur dari Yamaha sehingga ketika marker di deteksi oleh aplikasi akan memunculkan objek 3D dari motor sehingga konsumen dapat melihat desain dari motor secara lebih jelas. Hasil dari penelitian ini adalah aplikasi Augmented Reality berbasis android yang akan menampilkan desain 3D dari motor, mengganti variasi motor dan mampu menampilkan informasi dari masing-masing motor. Dengan demikian aplikasi ini dapat meningkatkan daya tarik konsumen dalam kegiatan promosi di Yamaha Tjahaja Baru.